All APKs for (Android 4.0+) variant
Tumblr 5.4.1.00 (Android 4.0+)
February 17, 2016
Tumblr 5.0.0.13 (Android 4.0+)
December 11, 2015
Tumblr 4.7.0.18 (Android 4.0+)
September 30, 2015